Combined churn and butter-worker.



H. R. GARDNER. COMBINED GHURN AND BUTTER WORKER.

APPLICATION FILED 00w. 11,-1911.

1 092 350 Patented Apr. 7, 191

UNITED STATES PATENT FFTCE.

HARVEY R. GARDNER, OF OWATONNA, MINNESOTA, ASSIG-NOR TO HOME CREAMERY MANUFACTURING COMPANY, OF OWATONNA, MINNESOTA, A COPARTNERSHIP COMPOSED OF CARL K. BENNETT AND GUY B. BENNETT.

COMBINED CHURN AND BUTTER-WORKER.

Specification of Letters'Patent.

Patented Apr. 7, 1914.

To all whom it may concern Be it known that I, HARVEY R. GARDNER, a citizen of the United States, residing at Owatonna, in the county of Steele and State of Minnesota, have invented certain new and useful Improvements in Combined Ohurns and Butter-Workers, of which the following is a specification.

The invention relates to combined churns and butter-workers, and the object of the invention is to provide a combined churn and buttenworker having an improved arrangement of the operative parts within the churn barrel as hereinafter shown and described.

In the drawings illustrating the preferred embodiment of the invention-Figure 1 is a side elevation of my improved combined churn and butter-worker with portions of the churn barrel adjacent the ends thereof in section and parts of the operative mechanism in section to disclose the construction thereof. Fig. 2 is an end view taken at the end upon which the driving mechanism is located. Fig. 3 is a sectional view taken on line 3, 3 of Fig. 1, in the direct-ion indicated by the arrows. Fig. 4 is a sectional view through one of the butter-working shelves, illustrating the preferred mode of attachment thereof to the end walls of the churn. Fig. 5 is a detail sectional view on line 5, 5 of Fig. 4. Fig. 6 is a sectional view through the end of one of the auxiliary rollers and the adjacent end of the churn, showing the details of construction by which the rollers are secured to the end walls of the churn barrel.

The invention is shown applied to a power driven combined churn and butter-worker, the churn barrel being of cylindrical form throughout and made of any suitable material, preferably of the usual relatively thick wood staves as indicated by the reference character 10. The staves are retained in position to form the barrel by the usual hoops, of which there may be three or more as indicated at 11. The churn barrel is provided with end members or heads as indicated at 12, 13, the head 13 having the large internal toothed driving gear 14 secured thereto and adapted to mesh with driving pinion 15 on driving shaft 16. The driving shaft 16 also carries a spur gear 17, meshing with gear 18 secured to the outer extremity of the central shaft upon which is supported the central roller 19, which is preferably of the form illustrated for example in the sectional view shown in Fig. 3, being supported on the shaft or gudgeon 20 at the driven end of the roller to which is secured the driving gear 18, and at its other extremity by an other similar gudgeon or shaft, which may if desired be an extension of shaft 20, the same being indicated by the reference character 21 and having its bearing at 22 in the standard 23 which forms a part of the supporting frame, the other end member of the frame being indicated at 24, and the end members connected by one or more suitable strengthening members 25. The cylindrical portion of the barrel is provided with one or more detachable or removable doors as indicated at 26, which may be of any desired and suitable construction, the details of the same not being specifically shown since the doors form no part of the invention.

Adjacent the fluted central roller within the churn barrel and upon opposite sides thereof at angles of 180' degrees to each other are two additional or supplemental rollers 27, 28. These rollers are preferably angular in cross-section, being shown octagonal, and their manner of pivotal securement to the heads or ends 12, 13 of the churn barrel is shown in detail sectional view Fig. 6, wherein the end of roller 28 is provided with a plate 29 secured thereon by suitable screws as indicated at 30, 31, the plate 29 being provided with a gudgeon 32 adapted to be journaled in the end walls of the churn. Thus it will be seen that the rollers 27 28 are free to rotate on their bearings, while the large central fluted roller 19 is positively driven in the direction indicated by the arrow in Fig. 3, which it will be seen is ina reverse direction from the direction of rotation imparted to the churn barrel, as also indicated by the arrow in this same view and in Fig. 2.

The chief feature of the invention has regard to the arrangement and location of the lifting shelves with respect to the rollers 19, 27 and 28. The lifting shelves themselves are indicated by the reference characters 33 and 34, each shelf being similar and similarly positioned with respect to their cooperating rollers, the shelf 33 being adjacent the roller 28 and the shelf 34 adjacent the roller 27 These shelves are formed preferably of two individual pieces as illustrated,

the same being preferably although not necessarily of wood and extending from end to end of the churn barrel, being secured at their ends by bolts as indicated at 35, which pass through the shelf pieces and through brackets 36, preferably of metal, which are secured to the heads of the churn barrel 12, 13 by reason of the lugs or gudgeons 36 of which there are two or more in each bracket adapted to enter holes in the head or end portions 12, 13 of the churn barrel. These shelves 33, 31 may therefore be removed from the interior of the churn barrel by removing the bolts 35 by which they are secured to the brackets 36, and after the removal of the wooden portions of the shelf it will be seen that the brackets themselves may be readily detached or removed from the head or end portions 12, 13 of the churn barrel. The shelves 33, 3 1 are designed chiefly for cooperating with the rollers during the operation of working the butter, and although shelves have heretofore been employed in combination with rollers on combined churns and butter-workers I arrange the shelves in an improved manner in relation to the rollers, all three of which are in a common plane within the churn barrel, as

shown most clearly by reference to Fig. 3.

The butter-workin shelves 33, 341 position on opposite sides of the common plane of the three ro-llers,'one shelf being adjacent each of the two outside rollers and extending in a plane approximately at right angles to the common plane of the three rollers, or, in other words, having their operative faces which receive the mass of butter to be worked as the churn barrel is rotated extending ap proximately at right angles to the plane passing through the three rollers. Experi ments have demonstrated that this arrangement of the shelves 33, 3 1 is exceedingly advantageous and enables me to secure results hitherto not secured in a combined churn and butter-worker of this type, since the relation I describe of the shelves to the rollers enables them to present the mass of butter to be kneaded to the rollers in an improved manner which results in the complete workmg of the butter in a much shorter time and with less expenditure of power than hereto fore in combined churns and butter-workers of this type.

In order that the invention might be fully understood the details of the preferred em bodiment thereof have been specifically described, but it is not desired to be limited to the exact details shown. I claim: I 1. In a combined churn and butter-worker,

the combination with a churn barrel, of a central'roller and two side'rollers, means for driving the churn barrel and the central roller independently of each other, the said central roller and the two'side rollers lying approximately in a common plane, and a butter-working shelf extending longitudinally central roller and two side rollers, said roll- 7 ers all being located in a common plane,

driving mechanism for imparting rotation to the churn barrel and to the central roller in opposite directions, and butter-working shelves adjacent each of the said side rollers, the said shelves extending on either side of the common plane of the side rollers to a point adjacent the churn barrel, the operative faces'of' the said shelves lying inplanes approximately at right anglesto the com mon plane of the said central and side rollers.

In testimony whereof I have signed my name to this specification, in the presenceof two'subscribing witnesses, on this 4th day of October 'A. D. 1911.

' HARVEY'R. GARDNER. 7

Witnesses:

CARL K. BENNETT, HAR Y D. TOMPKINS.

Copies of this patent may be obtained for five cents each, by addressing the f Commissioner of Patents;

' Washington, I). G. 

